1》获取maven压缩文件 wget http://www-us.apache.org/dist/maven/maven-3/3.5.4/binaries/apache-maven-3.5.4-bin.tar.gz
2》增加配置 vim /etc/profile
export M2_HOME=/usr/local/mall-dev/apache-maven-3.5.4
export PATH=${M2_HOME}/bin:${PATH}
3》重新加载配置文件 source /etc/profile
4》mvn --version 检查: